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Chemical Bonding
Vocabulary from the chemical bonding chapter.
13
Science
8th Grade
04/11/2006

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Term
crystal lattice
Definition
an arrangement of ions bonded in a repeating three-dimensional pattern
Term
law of conservation of mass
Definition
mass cannot be created or destroyed in ordinary chemical and physical changes
Term
chemical formula
Definition
a combination of chemical symbols and numbers that represents a substance
Term
bond
Definition
an interaction that holds two atoms together
Term
valence electron
Definition
an electron in the outermost energy level of an atom
Term
ionic bond
Definition
a bond that forms when electrons are transferred from one atom to another, which results in a positive ion and a negative ion
Term
chemical equation
Definition
a representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products
Term
reactants
Definition
the starting materials in a chemical reaction
Term
chemical bonding
Definition
the joining of atoms to form new substances
Term
covalent bond
Definition
a bond formed when atoms share one or more pairs of electrons
Term
molecule
Definition
a particle that contains covalent bonds consisting of individual atoms

the smallest unit of a substance that keeps all of the physical and chemical properties of that substance

Term
metallic bond
Definition
a bond formed by the attraction between positively charged metal ions and the electrons around them
Term
ion
Definition
a charged particle that forms when one or more valence electrons are transferred from one atom to another
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